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Topic: Electrochemistry Problem  (Read 1433 times)

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Offline iamash

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Electrochemistry Problem
« on: June 15, 2014, 08:56:15 AM »
Hey!
I've got a problem I can't quite understand, I'll be grateful for any *delete me*

Q: There's copper, zinc, and silver in an electrolytic cell. As the applied voltage increases, in what order will the half reactions occur at the anode? Write and equation for each half reaction.

Attempted A:
1) Zn-->Zn(+2)+2e-
2) Cu-->Cu(+)+1e-
3) Ag-->Ag(+)+1e-
The above list is in decreasing Eo (oxidizing potential). Is this right? Or am I missing something?

Offline Borek

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Re: Electrochemistry Problem
« Reply #1 on: June 15, 2014, 11:51:31 AM »
Copper is most likely in the form of Cu2+.

Is your prediction that the most reactive metal will deposit first?
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